Version 4
SHEET 1 880 680
WIRE -80 112 -176 112
WIRE 48 112 0 112
WIRE 96 112 48 112
WIRE 224 112 160 112
WIRE 256 112 224 112
WIRE 272 112 256 112
WIRE -176 144 -176 112
WIRE 224 144 224 112
WIRE 48 160 48 112
WIRE -176 256 -176 224
WIRE 48 256 48 224
WIRE 48 256 -176 256
WIRE 224 256 224 224
WIRE 224 256 48 256
WIRE -176 288 -176 256
WIRE -160 368 -176 368
WIRE -144 368 -160 368
WIRE -48 368 -96 368
WIRE -96 400 -96 368
WIRE -144 416 -144 368
WIRE -144 512 -144 464
WIRE -96 512 -96 480
FLAG -176 288 0
FLAG -176 112 Ue
FLAG 256 112 Ua
FLAG -96 512 0
FLAG -144 512 0
FLAG -160 368 Ue
FLAG -48 368 Ua1
SYMBOL Misc\\EuropeanResistor -96 128 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value {R1}
SYMBOL cap 32 160 R0
SYMATTR InstName C1
SYMATTR Value {C1}
SYMBOL cap 96 128 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value {C2}
SYMBOL Misc\\EuropeanResistor 208 128 R0
SYMATTR InstName R2
SYMATTR Value {R2}
SYMBOL voltage -176 128 R0
SYMATTR InstName V1
SYMATTR Value AC 1
SYMBOL e -96 384 R0
SYMATTR InstName E1
SYMATTR Value Laplace = (s*R2*C2)/(1+s*(R1*(C1+C2)+R2*C2) +s*s*R1*C1*R2*C2)
TEXT -216 -16 Left 2 !.params R1=1k  C1=0.1u  R2=1.5k  C2=0.22u
TEXT -216 -72 Left 2 !.ac dec 100 10 100k